CN107092183A - Implementation method during high-precision school based on GPS second pulse - Google Patents
Implementation method during high-precision school based on GPS second pulse Download PDFInfo
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- CN107092183A CN107092183A CN201710344903.5A CN201710344903A CN107092183A CN 107092183 A CN107092183 A CN 107092183A CN 201710344903 A CN201710344903 A CN 201710344903A CN 107092183 A CN107092183 A CN 107092183A
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- gps
- pulse
- time code
- satellite
- implementation method
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- G—PHYSICS
- G04—HOROLOGY
- G04R—RADIO-CONTROLLED TIME-PIECES
- G04R20/00—Setting the time according to the time information carried or implied by the radio signal
- G04R20/02—Setting the time according to the time information carried or implied by the radio signal the radio signal being sent by a satellite, e.g. GPS
Abstract
The invention discloses implementation method when planting the high-precision school based on GPS second pulse, it comprises the following steps：Step one：By spaceborne computer software to the gps time code received, validity check is carried out；If by validation checking, into step 2；If not by validation checking, into step 4；Step 2：By spaceborne computer software to the gps time code received, a periodic quantity is determine whether；If the gps time code received, is not a upper periodic quantity, then into step 3；If the gps time code received, is a upper periodic quantity, then gps time code+1, subsequently into step 3.The present invention solves easy appearance leakage second, clock accuracy not high phenomenon when conventional satellite is calibrated based on the GPS second burst length, and application of the invention achieves the beneficial effect for improving time precision on Satellite.
Description
Technical field
The present invention relates to a kind of satellite high-precision calibration method, more particularly to a kind of high accuracy based on GPS second pulse
Implementation method during school.
Background technology
Traditional satellite is based on work(during GPS (Global Positioning System, global positioning system) pulse per second (PPS) school
, without fault-tolerant design, easily there is leakage second phenomenon, design method is completely dependent on satellite GPS second pulse during this star in the realization of energy
When PPS generations, the reception of bus gps time code, bus marco chip read/write, bus transfer, spaceborne computer software processing all
There is time delay, these when postpone a meeting or conference on satellite be based on GPS second pulse school when function produce influence.Traditional satellite is based on GPS second arteries and veins
, easily there is leakage second phenomenon, requirement of the satellite application to high time precision can not have been met in the design method of function when rushing school.
The content of the invention
The implementation method when technical problems to be solved by the invention are to provide a kind of high-precision school based on GPS second pulse,
It can be by fault-tolerant design, function when effectively realizing the high-precision school based on GPS second pulse.
The present invention is to solve above-mentioned technical problem by following technical proposals：It is a kind of based on the high-precision of GPS second pulse
Implementation method when spending school, it is characterised in that it comprises the following steps：
Step one：By spaceborne computer software to the gps time code received, validity check is carried out；If by effective
Property detection, then into step 2；If not by validation checking, into step 4；
Step 2：By spaceborne computer software to the gps time code received, a periodic quantity is determine whether；If connecing
The gps time code received, is not a upper periodic quantity, then into step 3；If the gps time code received, is a upper periodic quantity,
Then gps time code+1, subsequently into step 3；
Step 3：Gps time code and GPS second pulse signal that spaceborne computer software is sent according to GPS units, carry out base
In the Conventional temporal calibration function of GPS second pulse, subsequently into step 5；
Step 4：Spaceborne computer software design patterns satellite time is satellite local zone time, subsequently into step 5；
Step 5：Spaceborne computer soft cast satellite time.
Preferably, gps time code is GPS while pps pulse per second signal is exported, by the GPS at whole moment second
Timing code write bus is cached.
Preferably, the satellite local zone time is local zone time code in pulse per second (PPS) moment latch present satellites master clock institute
.
Preferably, the GPS second pulse signal is pps pulse per second signal of the GPS in whole output per second.
Preferably, the Conventional temporal calibration function based on GPS second pulse is according to gps time code and local zone time code
Difference, carry out satellite time calibration.
The positive effect of the present invention is：The present invention can be realized effectively by fault-tolerant design and be based on GPS second arteries and veins
Function during the high-precision school of punching, can stablize precision when improving the high-precision school based on GPS second pulse.
Brief description of the drawings
Fig. 1 is principle schematic of the invention.
Fig. 2 is implementation process figure of the invention.
Embodiment
Present pre-ferred embodiments are provided below in conjunction with the accompanying drawings, to describe technical scheme in detail.
As shown in Figure 1 and Figure 2, implementation method comprises the following steps during high-precision school of the present invention based on GPS second pulse：
Step one：By spaceborne computer software to the gps time code received, validity check is carried out；If by effective
Property detection, then into step 2；If not by validation checking, into step 4；
Step 2：By spaceborne computer software to the gps time code received, a periodic quantity is determine whether；If connecing
The gps time code received, is not a upper periodic quantity, then into step 3；If the gps time code received, is a upper periodic quantity,
Then gps time code+1, subsequently into step 3；
Step 3：Gps time code and GPS second pulse signal (PPS) that spaceborne computer software is sent according to GPS units,
The Conventional temporal calibration function based on GPS second pulse is carried out, subsequently into step 5；
Step 4：Spaceborne computer software design patterns satellite time is satellite local zone time, subsequently into step 5；
Step 5：Spaceborne computer soft cast satellite time.
Gps time code is GPS while pps pulse per second signal is exported, by the gps time code at whole moment second
Write bus is cached, so convenient statistics.
The satellite local zone time is that local zone time code is to be latched obtained by present satellites master clock, so at the pulse per second (PPS) moment
Convenient definition.
The GPS second pulse signal is pps pulse per second signal of the GPS in whole output per second, so convenient control.
The Conventional temporal calibration function based on GPS second pulse is the difference according to gps time code and local zone time code,
Satellite time calibration is carried out, accuracy rate is so improved.
Particular embodiments described above, technical problem, technical scheme and beneficial effect to the solution of the present invention are carried out
It is further described, should be understood that the specific embodiment that the foregoing is only of the invention, be not limited to
The present invention, within the spirit and principles of the invention, any modification, equivalent substitution and improvements done etc. should be included in this
Within the protection domain of invention.
Claims (5)
1. implementation method during a kind of high-precision school based on GPS second pulse, it is characterised in that it comprises the following steps：
Step one：By spaceborne computer software to the gps time code received, validity check is carried out；If being examined by validity
Survey, then into step 2；If not by validation checking, into step 4；
Step 2：By spaceborne computer software to the gps time code received, a periodic quantity is determine whether；If receiving
Gps time code, be not a upper periodic quantity, then into step 3；If the gps time code received, is a upper periodic quantity, then
Gps time code+1, subsequently into step 3；
Step 3：Gps time code and GPS second pulse signal that spaceborne computer software is sent according to GPS units, are based on
The Conventional temporal calibration function of GPS second pulse, subsequently into step 5；
Step 4：Spaceborne computer software design patterns satellite time is satellite local zone time, subsequently into step 5；
Step 5：Spaceborne computer soft cast satellite time.
2. implementation method during high-precision school based on GPS second pulse as claimed in claim 1, it is characterised in that during the GPS
Between code be GPS while pps pulse per second signal is exported, the gps time at whole moment second code write bus is cached.
3. implementation method during high-precision school based on GPS second pulse as claimed in claim 1, it is characterised in that the satellite
Local zone time is that local zone time code is to be latched at the pulse per second (PPS) moment obtained by present satellites master clock.
4. implementation method during high-precision school based on GPS second pulse as claimed in claim 1, it is characterised in that the GPS second
Pulse signal is pps pulse per second signal of the GPS in whole output per second.
5. implementation method during high-precision school based on GPS second pulse as claimed in claim 1, it is characterised in that described to be based on
The Conventional temporal calibration function of GPS second pulse is the difference according to gps time code and local zone time code, carries out satellite time school
It is accurate.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN201710344903.5A CN107092183A (en) | 2017-05-16 | 2017-05-16 | Implementation method during high-precision school based on GPS second pulse |
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| CN201710344903.5A CN107092183A (en) | 2017-05-16 | 2017-05-16 | Implementation method during high-precision school based on GPS second pulse |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109212955A (en) * | 2018-09-19 | 2019-01-15 | 中国空间技术研究院 | A kind of multi-source Satellite system time intelligent management |
| CN109412734A (en) * | 2018-09-26 | 2019-03-01 | 北京航天控制仪器研究所 | A kind of underwater sound signal synchronization point computing system and method based on buoy platform |
| CN109975834A (en) * | 2019-02-19 | 2019-07-05 | 上海卫星工程研究所 | The in-orbit clock drift accurate measuring systems of spaceborne computer and measurement method |
| CN113824522A (en) * | 2021-09-18 | 2021-12-21 | 上海航天电子通讯设备研究所 | Time correcting system based on VDE satellite-ship synchronous communication system |
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN109212955A (en) * | 2018-09-19 | 2019-01-15 | 中国空间技术研究院 | A kind of multi-source Satellite system time intelligent management |
| CN109412734A (en) * | 2018-09-26 | 2019-03-01 | 北京航天控制仪器研究所 | A kind of underwater sound signal synchronization point computing system and method based on buoy platform |
| CN109975834A (en) * | 2019-02-19 | 2019-07-05 | 上海卫星工程研究所 | The in-orbit clock drift accurate measuring systems of spaceborne computer and measurement method |
| CN109975834B (en) * | 2019-02-19 | 2021-03-09 | 上海卫星工程研究所 | Satellite-borne computer on-orbit clock drift accurate measurement system and measurement method |
| CN113824522A (en) * | 2021-09-18 | 2021-12-21 | 上海航天电子通讯设备研究所 | Time correcting system based on VDE satellite-ship synchronous communication system |
| CN113824522B (en) * | 2021-09-18 | 2023-09-12 | 上海航天电子通讯设备研究所 | Timing system based on VDE star-ship synchronous communication system |
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